Lactobacillus reuteri is one of the most extensively studied probiotic strains, naturally found in the human gut and breast milk, with research spanning a notably wide range of health areas. Studies indicate that specific strains, particularly L. reuteri DSM 17938, may help reduce crying time in breastfed infants with colic, and research suggests potential benefits for gut health, including support during H. pylori management when used alongside standard treatments. Emerging evidence has also explored its role in oral health, where it may help maintain a balanced oral microbiome, as well as in bone density preservation, particularly in older adults. Commonly available as capsules or infant drops through brands like BioGaia, L. reuteri continues to be an active and promising area of probiotic research across multiple life stages.
Compare this supplementResearch suggests that Lactobacillus reuteri DSM17938 may reduce crying and fussing in infants with colic, though the...
View studies →Research suggests that Lactobacillus reuteri may support bone health through several interconnected pathways, particu...
View studies →Research suggests that Lactobacillus reuteri may support gut health through several interconnected mechanisms, includ...
View studies →The available study linked here does not directly investigate Lactobacillus reuteri for H. pylori support. The single...
View studies →Research suggests that Lactobacillus reuteri and related Lactobacillus species may play a meaningful role in gut meta...
View studies →These are commonly referenced dosage ranges for this supplement. They are not medical recommendations. Always consult a healthcare provider before supplementing.
| Form | Dose range | Frequency | Studied for | Source |
|---|---|---|---|---|
| Capsule | 99,999,999.99 CFU | Daily | Bone health | Used in RCTs studying bone density in older women (e.g., Nilsson et al. 2018) |
| Capsule | 99,999,999.99 CFU | Daily | Gut health | Common dose in trials for IBS, diarrhea, and general gut microbiota support |
| Capsule | 99,999,999.99 CFU | Twice daily | H. pylori support | Used as adjunct to standard triple therapy in clinical trials |
| Capsule | 99,999,999.99 CFU | Daily | Metabolism support | Used in trials examining cholesterol, insulin sensitivity, and metabolic markers |
| Liquid | 99,999,999.99 CFU | Daily | Infant colic | Consistently used in RCTs for infantile colic (e.g., Savino et al., Szajewska et al.) |
| Tablet | 99,999,999.99 CFU | Twice daily | Dental and oral health | Used in clinical trials examining periodontal health and mutans streptococci reduction |